Results 211 to 220 of about 3,607 (265)

LLC Resonant Converter With Matrix Transformer

IEEE Transactions on Power Electronics, 2014
In this paper, a high efficiency high power density matrix transformer structure for LLC resonant converters is proposed. Matrix transformer is help to reduce leakage inductance and the AC resistance of windings. Flux cancellation method is utilized to reduce core size and loss.
Daocheng Huang, Shu Ji, Fred. C. Lee
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Effects of the HVDC System on Converter Transformers

2019 8th International Conference on Renewable Energy Research and Applications (ICRERA), 2019
HVDC is a recognized economical and technical advantageous solution for long distance transmission, asynchronous interconnections and long submarine cables crossing. The number of projects already in operation or under consideration has increased in the last years, reflecting the global interest on this technology.
Czernorucki M. V., Salles M. B. C., Melo A. S., Da Costa E. C. M., Piegari L.   +4 more
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Analysis of steady-state operation of Bao'an converter station's Y/Y converter transformer substitute Zhaoqing converter station's converter transformer

2010 Conference Proceedings IPEC, 2010
The Y/Y phase C converter transformer in ±500kV Zhaoqing converter station had been seriously damaged, because the 1.1 bushing had interior flashover. Due to it will take almost one year to remedy it or to manufact a new transformer, in case of that the transformers in Zhaoqing converter station fall to malfunction, this paper study the feasibility of ...
null Hongtai Liu, null Rui Lin, null Ganqing Zuo   +2 more
openaire   +1 more source

Main Traction Converter with Medium-Frequency Transformer: Control of Converters around MF Transformer

2008 International Symposium on Power Electronics, Electrical Drives, Automation and Motion, 2008
This contribution deals with a new configuration of main traction converter for locomotives containing a medium-frequency transformer. The main emphasis is given on the proposed control of the converters around the medium-frequency transformer which transmits power using 400-Hz square-wave voltage.
T. Komrska, Z. Peroutka
openaire   +1 more source

Hybrid Transformer With Matrix Converter

IEEE Transactions on Power Delivery, 2016
This paper deals with an ac–ac voltage regulator/compensator based on a hybrid transformer with a matrix converter realizing electrical coupling in the hybrid transformer unit. The parameters of electrical energy, such as voltage amplitude, are very important, particularly from the viewpoint of the final consumer and sensitive loads connected to the ...
Pawel Szczesniak, Jacek Kaniewski
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Differential protection of converter transformers

2016 17th International Scientific Conference on Electric Power Engineering (EPE), 2016
In this paper, development of the special converter transformer model (with 5 windings) and testing results of its differential protection is presented. The special converter transformer is mainly used for supply of rectifiers or converters, FACTS devices etc. This type of transformer can introduce non-standard fixed phase angle shifts such as 20o, 15o,
Krzysztof Solak, Waldemar Rebizant, Ludwig Schiel   +2 more
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Transformer synthesis for VHF converters

The 2010 International Power Electronics Conference - ECCE ASIA -, 2010
This document presents a method to synthesize an air-core transformer with a given inductance matrix. The proposed algorithm is used to design a two-winding transformer for a Φ 2 resonant dc-dc converter operating in the VHF (30–300 MHz) regime. The method realizes the required inductance matrix to achieve proper tuning while trading volume and ...
Anthony D. Sagneri, David I. Anderson, David J. Perreault   +2 more
openaire   +1 more source

Matrix Converter-Based Active Distribution Transformer

IEEE Transactions on Power Delivery, 2016
This paper proposes a matrix converter-based active distribution transformer (MC-ADT) with enhanced control functionalities to be used in smart grids (SG). The proposed MC-ADT uses a matrix converter (MC) connected to a transformer inserted in series with the grid, and allows: 1) real-time voltage regulation of the low-voltage side of the MC-ADT, based
Pinto, S. F., Alcaria, P., Monteiro, Joaquim, Silva, J.F.   +3 more
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Analysis of DC-DC Converters Containing a Transformer

2006 IEEE International Symposium on Circuits and Systems, 2006
This paper gives rigorous analysis of a kind of switching converters containing a transformer and shows that some graph-theoretic interpretation for them to work as DC-DC converters is possible.
Tetsuo Nishi, Masato Ogata
openaire   +1 more source

Existence of Similarity Transformation Converting BMIs to LMIs

IEEE Transactions on Fuzzy Systems, 2007
Under a mild condition, we investigate the existence of a similarity transformation regarding robust Hinfin stability analysis and observer-controller synthesis problems. The observer-based controller is capable of disturbance-rejection in the presence of unknown but bounded disturbance.
Ji-Chang Lo, Min-Long Lin
openaire   +2 more sources